COST GUIDES
Installing an extractor fan: Cost breakdown 2026
Updated 04/26
An extractor fan is essential for maintaining good ventilation, preventing damp, and improving air quality in your home.
In this guide, we break down the cost to install an extractor fan in the UK, including typical labour prices, and what affects the total quote.
Fast Facts
The cost of installing a new extractor fan (which there wasn't one before) averages around £300
Replacing an existing extractor fan typically costs around £200
Already brought an extractor fan and need a qualified electrician to install it? Installation costs are £180
The average cost for a bathroom extractor fan (unit only) is around £75
Meanwhile, the average cost of a kitchen extractor fan (unit only) is around £60
How much does it cost to install an extractor fan in the UK in 2026?
| Cost provided item | Cost + VAT (Range low - high) | Average UK cost |
|---|---|---|
| Total extractor fan and installation cost (replacing an existing fan) | £175 - £225 | £200 |
| Total extractor fan and installation cost (new installation of fan) | £250 - £350 | £300 |
| Extractor fan - kitchen | £45 - £75 | £60 |
| Extractor fan - bathroom | £60 - £90 | £75 |
| Extractor fan installation cost | £60 - £300 | £180 |
| Last updated: June 2026 Our costs are ballpark averages - get a local tradesperson to quote now | ||
On average, extractor fan fitting costs in the UK are:
£200 for a replacement extractor fan
£300 for the installation of an extractor fan (where there wasn't one previously)
Extractor fan prices per project
You'll find a slight variance in price depending on whether you need a new extractor fan for a kitchen or a bathroom, or a replacement fan. Here's what to expect:
Bathroom extractor fan installation cost
A bathroom extractor fan is essential to prevent the water vapour from settling on cooler surfaces such as the walls and ceiling, which can lead to damp and mould:
The average cost of a bathroom extractor fan (unit only) is around £75
You'll also need to add the cost of the installation, which is around £180
Kitchen extractor fan installation cost
Steam, fumes and odours from cooking are removed from a kitchen via an effective extractor fan.
The average cost of a kitchen extractor fan (unit only) is around £60
And don't forget to account for labour costs, which are around £180
Replace extractor fan cost UK
When it comes to replacing a fan, the vents, ducting, and electrics are already in place (unless a part needs to be replaced), making for a much quicker and less complex job.
Replacing an existing extractor fan typically costs around £200
New extractor fan fitting cost UK
With a new extractor fan, all the fixtures will need to be installed from scratch, which is a much bigger job.
The cost of installing a new extractor fan averages around £300
Wondering if you need to hire an electrician or plumber to install an extractor fan? If the fan needs connecting to your mains supply or wiring into a lighting circuit, hiring a qualified electrician is recommended.
Get an accurate quote for an extractor fan installation near you
See available qualified electricians in your local area, read customer reviews, and get in touch directly for a quote using our free mobile app. Alternatively, just search your postcode below.
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Extractor fan installation estimator tool
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Factors affecting the cost to install an extractor fan (UK)
Calculating the cost to install an extractor fan is not as simple as taking an average price. You will also need to take into account the following factors:
Type of extractor fan: Standard extractor fans are more affordable than silent or heat recovery extractors
Installation location: Extractor fans are typically installed in the wall or ceiling, although it may sometimes be necessary to access your loft. If access is difficult, installation costs will increase
Ducting requirements: If additional ducting is required, this can add to the installation cost
Electrical work and rewiring: Depending on the condition and location of wiring in your home, it may be necessary to replace all or part of it when you install an extractor fan
Activation method: Whether you have a switch, a lighting pull cord, or automatic activation can affect the cost of your fan installation
Labour costs: It's not uncommon for labour rates to be higher in London and the South East
Not sure what extractor fan size you need? The size of your room and the amount of ventilation already in place will determine the size of the extractor fan you require. An experienced extractor fan installer will be able to guide you.
Hidden costs to consider
To help you plan your budget for the cost of extractor fan installation, consider these possible scenarios:
New vent or core drilling: Installing a new extractor fan where there wasn't one previously will cost more than a straightforward replacement
Scaffolding or high-access work: For upper-floor installations, scaffolding or special equipment might be necessary
Plastering and wall prep: After installation, the area may require replastering, painting, or tiling, which will add extra cost
Building regulations compliance: New extractor fan installations must meet UK building regulations (Part F) for adequate ventilation
To hire an installer registered with a competent person scheme to ensure compliance, just search your postcode below.
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What does installing an extractor fan involve?
Installing an extractor fan from scratch is a bigger job than you might think. Here's the process in a nutshell:
Choose the right fan & location: Based on room size, ventilation needs, and access to an external wall or roof
Mark and cut the opening (for new installs): A hole is made in the wall, ceiling, or window for the fan unit
Install ducting (if needed): Connects the fan to a vent to remove moist air properly
Fit the extractor fan unit: Secured in place and sealed to prevent air leaks
Turn off the power supply & connect to the electrics: Wired to the mains or lighting circuit (often with an isolator switch)
Install external vent cover (for new installs): Protects against drafts and keeps out debris
Test the system: Make sure the fan runs correctly and extracts air efficiently
Cost of hiring extractor fan installers vs DIY
Thinking about taking on the job yourself for a like-for-like replacement? Let's weigh up the costs:
DIY extractor fan installation:
If you're a confident DIY-er, you can take on installing a basic extractor fan yourself if it’s a simple replacement and no new wiring is required
The average cost of a bathroom extractor fan (unit only) is around £75
Meanwhile, the approximate cost of a kitchen extractor fan (unit only) is around £60
If you're installing an extractor fan yourself, you must turn off the power supply at the consumer unit before carrying out any electrical work.
Professional extractor fan installation:
For new installations, especially in bathrooms, it’s advised to use a qualified electrician
The average price will be around £200 for a replacement
Meanwhile, a new installation will cost around £300
To find a local electrician in your area and to get an exact extractor fan installation quote, use our free search feature.
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Is professional extractor fan installation worth it?
For many homeowners, hiring a professional electrician to install an extractor fan is well worth the investment:
Ensures safe electrical work: A qualified electrician will install and connect the fan correctly
Meets UK building regulations: Especially important in bathrooms and kitchens, where the combination of water and electrics can be a hazard
Guarantees proper ventilation: Correct placement and ducting ensure moist air is vented outside
Reduces risk of costly mistakes: Avoids issues like poor airflow, leaks, or incorrect wiring
Saves time and hassle: A professional can complete the job quickly and efficiently
Provides peace of mind: You know the installation is done properly and built to last
Helps meet building regulations: Especially important for bathrooms without windows
Find trusted and experienced extractor fan installers near you
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So when you need a qualified electrician for your extractor fan installation, we've got you covered.
Extractor fan installation checklist
FAQs about extractor fan installation
For a new extractor fan installation, it's recommended to hire a qualified electrician. DIY installation is possible, but you must remember to switch off your power at the mains first.
A simple extractor fan replacement can take 1–2 hours to install. A new installation with wiring and ducting usually takes 3–6 hours, depending on the difficulty of accessing walls or ceilings.
For best results, extractor fans should vent directly outside. Venting into a loft or cavity can lead to condensation problems and mould over time, which defeats the purpose of installing the fan.
There are three main types of extractor fans:
Wall fans: Installed in an external wall, venting air directly outside. These are usually the most cost-effective and straightforward to fit
Ceiling fans: Fitted in the ceiling and vented through the loft to a wall or roof vent. Best suited to upstairs bathrooms
Window fans: Installed through a cut-out in a window. Less common, but still effective
Bathrooms generally need a higher extraction rate - around 85m³/h for an ensuite or shower room or 230m³/h for a larger bathroom. Look for a powerful bathroom extractor fan with a humidistat (humidity sensor).
Kitchens typically benefit from larger, more robust extractor fans that can handle cooking fumes efficiently.
Extractor fans tend to last around ten years. Signs that replacement is needed include excessive noise or decreased efficiency. That is, it no longer effectively removes moisture from the room it's in.
Basic installations are relatively affordable, especially if you’re replacing an existing fan. Costs increase when structural work is needed, such as drilling through external walls or installing new ducting.
You can install a basic extractor fan yourself if it’s a simple replacement and no new wiring is required.
However, for new installations, especially in bathrooms , it’s best to use a qualified electrician. This makes sure the work is safe, complies with UK building regulations, and tackles moisture-prone areas.
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